Hi,
I'm supposed to write a program using super and subclasses to calculate monthly payroll for 5 employees. There are 4 types of employees, salaried, hourly, commissioned, and base plus commissioned. Anyway, I've gotten it to build with no errors and it runs almost like it should but since it prompts for the employees' information multiple times, it only keeps the last info entered for any given field. Can anyone help me figure out how to make it use each set of inputs separately instead of only keeping the most recent input? Below is my main class, followed by my super class and driver classes. I wasn't sure if it would help to see all of that.
// PayrollSystemTest.java
// Employee hierarchy test program.
import javax.swing.JOptionPane;
public class PayrollSystemTest
{
public static void main( String args[] )
{
String first = "";
String last = "";
String ssn = "";
String salaryString;
double salary = 0;
String wageString;
double wage = 0;
String hoursString;
int hours = 0;
String salesString;
double sales = 0;
String rateString;
double rate = 0;
String empTypeString = "";
int empType = 0;
int count;
for(count = 0; count < 5; count++)
{
empTypeString = JOptionPane.showInputDialog(null, "What type of employee are you?\n\nEnter the number that corresponds to your answer.\n1. Salaried\n2. Hourly\n3. Commissioned\n4. Base Plus Commissioned", "Employee Type", JOptionPane.QUESTION_MESSAGE);
empType = Integer.parseInt(empTypeString);
switch(empType)
{
case 1:
first = JOptionPane.showInputDialog(null, "What is your first name?", "First Name", JOptionPane.QUESTION_MESSAGE);
last = JOptionPane.showInputDialog(null, "What is your last name?", "Last Name", JOptionPane.QUESTION_MESSAGE);
ssn = JOptionPane.showInputDialog(null, "What is your social security number?", "SSN", JOptionPane.QUESTION_MESSAGE);
salaryString = JOptionPane.showInputDialog(null, "What is your weekly salary?", "Salary", JOptionPane.QUESTION_MESSAGE);
salary = Double.parseDouble(salaryString);
break;
case 2:
first = JOptionPane.showInputDialog(null, "What is your first name?", "First Name", JOptionPane.QUESTION_MESSAGE);
last = JOptionPane.showInputDialog(null, "What is your last name?", "Last Name", JOptionPane.QUESTION_MESSAGE);
ssn = JOptionPane.showInputDialog(null, "What is your social security number?", "SSN", JOptionPane.QUESTION_MESSAGE);
wageString = JOptionPane.showInputDialog(null, "What is your hourly wage?", "Hourly Wage", JOptionPane.QUESTION_MESSAGE);
wage = Double.parseDouble(wageString);
hoursString = JOptionPane.showInputDialog(null, "How many hours per week do you work?", "Hours Worked", JOptionPane.QUESTION_MESSAGE);
hours = Integer.parseInt(hoursString);
break;
case 3:
first = JOptionPane.showInputDialog(null, "What is your first name?", "First Name", JOptionPane.QUESTION_MESSAGE);
last = JOptionPane.showInputDialog(null, "What is your last name?", "Last Name", JOptionPane.QUESTION_MESSAGE);
ssn = JOptionPane.showInputDialog(null, "What is your social security number?", "SSN", JOptionPane.QUESTION_MESSAGE);
salesString = JOptionPane.showInputDialog(null, "What are your weekly gross sales?", "Gross Sales", JOptionPane.QUESTION_MESSAGE);
sales = Double.parseDouble(salesString);
rateString = JOptionPane.showInputDialog(null, "What percent of commission do you receive?", "Commsission Rate", JOptionPane.QUESTION_MESSAGE);
rate = Double.parseDouble(rateString);
break;
case 4:
first = JOptionPane.showInputDialog(null, "What is your first name?", "First Name", JOptionPane.QUESTION_MESSAGE);
last = JOptionPane.showInputDialog(null, "What is your last name?", "Last Name", JOptionPane.QUESTION_MESSAGE);
ssn = JOptionPane.showInputDialog(null, "What is your social security number?", "SSN", JOptionPane.QUESTION_MESSAGE);
salesString = JOptionPane.showInputDialog(null, "What are your weekly gross sales?", "Gross Sales", JOptionPane.QUESTION_MESSAGE);
sales = Double.parseDouble(salesString);
rateString = JOptionPane.showInputDialog(null, "What percent of commission do you receive?", "Commsission Rate", JOptionPane.QUESTION_MESSAGE);
rate = Double.parseDouble(rateString);
salaryString = JOptionPane.showInputDialog(null, "What is your base pay?", "Base Pay", JOptionPane.QUESTION_MESSAGE);
salary = Double.parseDouble(salaryString);
break;
default:
JOptionPane.showMessageDialog(null, "Invalid entry!", "Error", JOptionPane.ERROR_MESSAGE);
break;
}
}
// create subclass objects
SalariedEmployee salariedEmployee =
new SalariedEmployee(first, last, ssn, salary);
HourlyEmployee hourlyEmployee =
new HourlyEmployee(first, last, ssn, wage, hours);
CommissionEmployee commissionEmployee =
new CommissionEmployee(first, last, ssn, sales, rate);
BasePlusCommissionEmployee basePlusCommissionEmployee =
new BasePlusCommissionEmployee(first, last, ssn, sales, rate, salary);
// create four-element Employee array
Employee employees[] = new Employee[ 4 ];
// initialize array with Employees
employees[ 0 ] = salariedEmployee;
employees[ 1 ] = hourlyEmployee;
employees[ 2 ] = commissionEmployee;
employees[ 3 ] = basePlusCommissionEmployee;
System.out.println( "Employees processed polymorphically:\n" );
// generically process each element in array employees
for ( Employee currentEmployee : employees )
{
System.out.println( currentEmployee ); // invokes toString
// determine whether element is a BasePlusCommissionEmployee
if ( currentEmployee instanceof BasePlusCommissionEmployee )
{
// downcast Employee reference to
// BasePlusCommissionEmployee reference
BasePlusCommissionEmployee employee =
( BasePlusCommissionEmployee ) currentEmployee;
double oldBaseSalary = employee.getBaseSalary();
employee.setBaseSalary( 1.10 * oldBaseSalary );
System.out.printf(
"new base salary with 10%% increase is: $%,.2f\n",
employee.getBaseSalary() );
} // end if
System.out.printf(
"earned $%,.2f\n\n", currentEmployee.earnings() );
} // end for
// get type name of each object in employees array
for ( int j = 0; j < employees.length; j++ )
System.out.printf( "Employee %d is a %s\n", j,
employees[ j ].getClass().getName() );
} // end main
} // end class PayrollSystemTest// Employee.java
// Employee abstract superclass.
public abstract class Employee
{
private String firstName;
private String lastName;
private String socialSecurityNumber;
private String birthDate;
// three-argument constructor
public Employee( String first, String last, String ssn )
{
firstName = first;
lastName = last;
socialSecurityNumber = ssn;
} // end three-argument Employee constructor
// set first name
public void setFirstName( String first )
{
firstName = first;
} // end method setFirstName
// return first name
public String getFirstName()
{
return firstName;
} // end method getFirstName
// set last name
public void setLastName( String last )
{
lastName = last;
} // end method setLastName
// return last name
public String getLastName()
{
return lastName;
} // end method getLastName
// set social security number
public void setSocialSecurityNumber( String ssn )
{
socialSecurityNumber = ssn; // should validate
} // end method setSocialSecurityNumber
// return social security number
public String getSocialSecurityNumber()
{
return socialSecurityNumber;
} // end method getSocialSecurityNumber
// return String representation of Employee object
public String toString()
{
return String.format( "%s %s\nsocial security number: %s",
getFirstName(), getLastName(), getSocialSecurityNumber() );
} // end method toString
// abstract method overridden by subclasses
public abstract double earnings(); // no implementation here
} // end abstract class Employee// SalariedEmployee.java
// SalariedEmployee class extends Employee.
public class SalariedEmployee extends Employee
{
private double weeklySalary;
// four-argument constructor
public SalariedEmployee( String first, String last, String ssn,
double salary )
{
super( first, last, ssn ); // pass to Employee constructor
setWeeklySalary( salary ); // validate and store salary
} // end four-argument SalariedEmployee constructor
// set salary
public void setWeeklySalary( double salary )
{
weeklySalary = salary < 0.0 ? 0.0 : salary;
} // end method setWeeklySalary
// return salary
public double getWeeklySalary()
{
return weeklySalary;
} // end method getWeeklySalary
// calculate earnings; override abstract method earnings in Employee
public double earnings()
{
return getWeeklySalary() * 4;
} // end method earnings
// return String representation of SalariedEmployee object
public String toString()
{
return String.format( "salaried employee: %s\n%s: $%,.2f",
super.toString(), "weekly salary", getWeeklySalary() );
} // end method toString
} // end class SalariedEmployee// HourlyEmployee.java
// HourlyEmployee class extends Employee.
public class HourlyEmployee extends Employee
{
private double wage; // wage per hour
private double hours; // hours worked for week
// five-argument constructor
public HourlyEmployee( String first, String last, String ssn,
double hourlyWage, double hoursWorked )
{
super( first, last, ssn );
setWage( hourlyWage ); // validate and store hourly wage
setHours( hoursWorked ); // validate and store hours worked
} // end five-argument HourlyEmployee constructor
// set wage
public void setWage( double hourlyWage )
{
wage = ( hourlyWage < 0.0 ) ? 0.0 : hourlyWage;
} // end method setWage
// return wage
public double getWage()
{
return wage;
} // end method getWage
// set hours worked
public void setHours( double hoursWorked )
{
hours = ( ( hoursWorked >= 0.0 ) && ( hoursWorked <= 168.0 ) ) ?
hoursWorked : 0.0;
} // end method setHours
// return hours worked
public double getHours()
{
return hours;
} // end method getHours
// calculate earnings; override abstract method earnings in Employee
public double earnings()
{
if ( getHours() <= 40 ) // no overtime
return getWage() * getHours() * 4;
else
return (40 * getWage() + ( getHours() - 40 ) * getWage() * 1.5) * 4;
} // end method earnings
// return String representation of HourlyEmployee object
public String toString()
{
return String.format( "hourly employee: %s\n%s: $%,.2f; %s: %,.2f",
super.toString(), "hourly wage", getWage(),
"hours worked", getHours() );
} // end method toString
} // end class HourlyEmployee// CommissionEmployee.java
// CommissionEmployee class extends Employee.
public class CommissionEmployee extends Employee
{
private double grossSales; // gross weekly sales
private double commissionRate; // commission percentage
// five-argument constructor
public CommissionEmployee( String first, String last, String ssn,
double sales, double rate )
{
super( first, last, ssn );
setGrossSales( sales );
setCommissionRate( rate );
} // end five-argument CommissionEmployee constructor
// set commission rate
public void setCommissionRate( double rate )
{
commissionRate = ( rate > 0.0 && rate < 1.0 ) ? rate : 0.0;
} // end method setCommissionRate
// return commission rate
public double getCommissionRate()
{
return commissionRate;
} // end method getCommissionRate
// set gross sales amount
public void setGrossSales( double sales )
{
grossSales = ( sales < 0.0 ) ? 0.0 : sales;
} // end method setGrossSales
// return gross sales amount
public double getGrossSales()
{
return grossSales;
} // end method getGrossSales
// calculate earnings; override abstract method earnings in Employee
public double earnings()
{
return getCommissionRate() * getGrossSales() * 4;
} // end method earnings
// return String representation of CommissionEmployee object
public String toString()
{
return String.format( "%s: %s\n%s: $%,.2f; %s: %.2f",
"commission employee", super.toString(),
"gross sales", getGrossSales(),
"commission rate", getCommissionRate() );
} // end method toString
} // end class CommissionEmployee// BasePlusCommissionEmployee.java
// BasePlusCommissionEmployee class extends CommissionEmployee.
public class BasePlusCommissionEmployee extends CommissionEmployee
{
private double baseSalary; // base salary per week
// six-argument constructor
public BasePlusCommissionEmployee( String first, String last,
String ssn, double sales, double rate, double salary )
{
super( first, last, ssn, sales, rate );
setBaseSalary( salary ); // validate and store base salary
} // end six-argument BasePlusCommissionEmployee constructor
// set base salary
public void setBaseSalary( double salary )
{
baseSalary = ( salary < 0.0 ) ? 0.0 : salary; // non-negative
} // end method setBaseSalary
// return base salary
public double getBaseSalary()
{
return baseSalary;
} // end method getBaseSalary
// calculate earnings; override method earnings in CommissionEmployee
public double earnings()
{
return getBaseSalary() * 4 + super.earnings();
} // end method earnings
// return String representation of BasePlusCommissionEmployee object
public String toString()
{
return String.format( "%s %s; %s: $%,.2f",
"base-salaried", super.toString(),
"base salary", getBaseSalary() );
} // end method toString
} // end class BasePlusCommissionEmployee